Guru ROM v6.1

The Guru ROM is a third party ROM (written by Ralph Babel, a former employee of GVP) containing replacement driver software for all GVP SCSI controllers in the "Impact Series II" class. The drivers provide improved performance and transfer speeds, bug fixes, work arounds for bugs in the A3000 and A4000 DMA handling and better support for modern SCSI devices.

As a side-note a version of the Guru ROM was also produced for the Commodore A2091 SCSI card.